Intermolecular Forces & Solubility

Intermolecular forces are the forces

• within molecules
• between molecules

Tags

NGSS.HS-PS1-3

Which of these is not an intermolecular force?

• covalent bonding
• hydrogen bonding
• London dispersion forces
• dipole-dipole forces

What type of IMF is present in all substances, regardless of polarity?

• London dispersion forces
• dipole-dipole forces
• ion-dipole forces
• hydrogen bonding

The measure of the resistance to the flow of a liquid is called:

• vapor pressure.

• sublimation.

• viscosity.

• condensation.

Which of these typically increases when IMF's increase?

• boiling point
• melting point
• viscosity
• all of these 

Tags

NGSS.HS-PS1-3

What type of IMF increases with increasing molecular weight (molar mass)?

• hydrogen bonding
• dipole-dipole forces
• London dispersion forces
• ion-dipole forces

Which of these is the strongest?

• hydrogen bonding
• dipole-dipole forces
• London dispersion forces
• ionic bonding

Tags

NGSS.HS-PS1-3

Which statement about boiling point is FALSE?

• The boiling point is higher for compounds with strong intermolecular forces.

• The boiling point is higher for compounds with a high viscosity.

• Boiling point is an absolute constant. (Ex. Planck's Constant)

• The boiling point of a compound is higher for nonvolatile compounds

What explains the very high melting and boiling point of water

• Strong dipole-dipole bonds between water molecules
• Strong hydrogen bonds between water molecules
• Dispersion forces which are present in all molecules
• Asymmetrical shape of the polar bonds.

Tags

NGSS.MS-PS1-4

Which of the following would have ion-dipole attractions with another molecule?

• Cl₂(aq)

• H₂O(s)

• NaCl(aq)

• CaBr₂(s)